Blender 2.8 is rendering in eevee when cycles is selected
With your attach Blend file, I see nothing rendering both for Eevee or Cycles ((2.80 2019-07-29). Not sure what the problem is. In either case, I was able to workaround the problem by selecting ALL objects in the first scene, creating a new, empty scene and pasting all the copied objects in the second scene. After that, it renders fine in both Eevee and Cycles.